Ventilator for cars



(No Model.)

H. E. JACOBS.

VENTILATOR FOR CARS.

N0. 363,642. Patented May 24, 1 887.

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U iTnn STATES PATENT OFFICEO HENRY E. J AOOBS, OF FOND DU LAO,\VISGONSIN.

VENTILATOR FOR CARS.

SPECIFICATION forming part of Letters Patent No. 363,642, datedMay,,2.4, 1887.

Application filed July 26, 1886. Serial No. 209,058. (No model.)

To all whom it may concern:

Be it known that I, HENRY E. JACOBS, a citizen of the United States,residing at Fond du Lac, in the county of Fond du Lac and State of\Visconsin, have inventeda certain new and Improved Ventilator forGar-Vindows; and I hereby declare the following to be a full, clear, andexact description of the same.

My improvement relates to the class of ventilators used on railroadpassengercars to exhaust the impure air from within the cars by theaction of the current of external air, produced principally by themovement of the train, through a tube crossing an opening leading intothe car, to draw therefrom the vitiated atmosphere by suction.

It is my object to provide a simple and inexpensive device for thepurpose for application at the car-windows, and which shall be readilyadjustable when required and as easily removed when not required.

To this end my invention consists in the genera], as well as in thespecific,- construction of my improved ventilator, all as hereinafterfully set forth and claimed.

In the drawings, Figure 1 shows the exter nal window portion of arailroad passengercar provided with my improved ventilator; Fig. 2, asection of the same taken on the line 2 2 of Fig. 1 and viewed in thedirection of the arrow; and Fig. 3, a similar view taken on the line 3 3of Fig. 1 and viewed in the direction of the arrows.

A is aboard or plate of a length to cause it to fit snugly between thesides of the sash of a car-window, B, and of any desired width, butpreferably only sufficiently wide to carry on one surface the mechanismhereinafter described and to be admitted into the windowsash on raisingthe window part way, though higher than the width ofthe board, againstthe upper edge of which the window is lowered or supported. The board isprovided with an opening, 0, preferably in the form of a longitudinalslot, as shown, covered on one surface by a shield or split tube, D,secured at its edges to the board and open at one end.

E is a tube within the shield D, extending lengthwise of the boardacross the opening 0 therein, slightly beyond one edge of the latter atone end, and flaring toward its opposite end, which extends beyond theshield D, closed around it at the extremity farthest from the edge ofthe opening C adjacent to the cylindrical end of the tube E.

The device is readily adjusted within the sash of a carwindow, to causethe parts D and E to be outside and lengthwise of the car upon raisingthe window for the purpose, and cansing it to have contact at its loweredge with the upper edge of the board A, to avoid an unpressed in itspassage, and by its expansion on discharging at the cylindrical end ofthe tube D increases the suction-force which operates to exhaust impureair from the interior of the car, and thus ventilate it.

The device affords particular advantage in sleeping-cars for ventilatingthe sleeping-compartments, sinceit operates without producing any colddraft, and may thus be used while a compartment is occupied withoutinconvenience or injurious consequences to the occu pant, andnotwithstanding the absence of a screen as part of the device noobjectionable matter can enter the car through the ventilator, owing tothe construction and manner of its action.

What I claim as new, and desire to secure by Letters Patent, is-

1. A removable car-window ventilator, comprising, in combination, aboard or plate, A, having a shielded opening, 0, and a tube, E, flaringtoward one end, upon one side of the board A, and extending across theopening 0, substantially as and for the purpose set forth.

2. A removable car window ventilator,

comprising, in combination, a board or plate, A, having an opening, 0, ashield, D, secured upon one side of the part A to cover the openingtherein and open at one end, and a tube, 5 E, extending across theopening 0, within the shield D, and flaring toward one end, whichextends beyond the corresponding end of the shield, the whole beingconstructed and arranged to operate substantially as described.

I HENRY E. JACOBS. In presence of-- J. W. DYRENFORTH,- HENRY HUDSON,

